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Piston-connecting rod structure used for refrigerating compressor

A technology of refrigeration compressors and piston connecting rods is applied in the field of refrigeration compressors to achieve the effects of enhancing stability and reliability, low wear, and improving work efficiency and service life

Inactive Publication Date: 2016-05-11
JIAXIPERA COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to propose a piston connecting rod structure for refrigeration compressors that is more stable and reliable in connection, can avoid defects caused by piston deformation, and effectively improve the working efficiency and service life of the compressor.

Method used

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  • Piston-connecting rod structure used for refrigerating compressor
  • Piston-connecting rod structure used for refrigerating compressor
  • Piston-connecting rod structure used for refrigerating compressor

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Embodiment Construction

[0016] Such as figure 1 As shown, the piston connecting rod structure of the present invention includes a connecting rod 11, a ball cover 12, an elastic element 13, a sphere 14, a ball seat 15 and a piston 16, the connecting rod 11 includes a connecting rod head 17 and a connecting rod body 18, and the inside of the connecting rod 11 There is an oil hole 19 as an oil supply channel (please also refer to Figure 4 ). The connecting rod head 17 and the connecting rod body 18 can be welded as one after being made of metal materials respectively, or can be made as one by powder metallurgy.

[0017] The ball cover 12 is preferably made of sheet metal, and its edge is provided with an elastic buckle 23 corresponding to the hemming groove 22 provided on the surface of the piston 16 . The matching gap between the ball cover 12 and the inner surface of the piston is small, which is much smaller than the size of the internal oil channel (including the oil groove and oil hole), so that...

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Abstract

The invention discloses a piston-connecting rod structure used for a refrigerating compressor. The piston-connecting rod structure comprises a connecting rod, a ball cover, an elastic element, a ball body, a ball seat and a piston. The connecting rod, the ball seat or the ball body and the piston are provided oil ways which communicate with one another sequentially. The connecting rod, the ball cover and the ball body are connected to form a connecting rod assembly provided with a ball head. The ball seat and the piston are connected to form a piston assembly provided with the ball seat. The elastic element is arranged between the ball cover and the ball seat. The ball cover is fixedly connected with the piston so that the connecting rod assembly, the elastic element and the piston assembly can be connected closely. By the adoption of the piston-connecting rod structure, connection is more stable and reliable, defects caused by deformation of the piston can be avoided, the working efficiency of the compressor is effectively improved, and the service life of the compressor is effectively prolonged.

Description

technical field [0001] The invention relates to the field of refrigeration compressors, in particular to a piston connecting rod structure for refrigeration compressors. Background technique [0002] The piston connecting rod structure is an important connection mechanism on the refrigeration compressor. DE 10356396 B4 discloses a piston rod arrangement in which the mounting means comprise a ball joint with a ball which is fastened by an attachment element in a reinforcing element arranged on the inner side of the piston crown. Attachment elements are welded to the inside of the piston skirt, or attached by other thermal means. This connection method is prone to deformation of the piston, causing refrigerant gas to leak in the gap between the piston and the cylinder, and the deformed piston is also more prone to wear, which affects the working efficiency and service life. Contents of the invention [0003] The technical problem to be solved by the present invention is to...

Claims

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Application Information

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IPC IPC(8): F04B39/00
CPCF04B39/00
Inventor 姚辉军徐飞李江国
Owner JIAXIPERA COMPRESSOR
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